Atomizer or spraying device.



E. H. PEABODY & D. J. IRISH. ATOMIZER 0R SPRAYING DEVICE. APPLICATION FILED SEPT. 22, 1911.

1,102,352, Patented July 7, 191 i BBHEETS-SHEET 2.

' ATTORAIEVJ.

E. H. PEABODY & D. J. IRISH.

ATOMIZER 0R SPRAYING DEVICE. APPLICATION FILED SEPT. 22, 1911.

Patented July 7, 191i 3 SHEETB-BHEBT 3.

WITNESSES. %5 a BY Y Zzga M2 AITOR/VEVJ.

ilNlT-E STATS PliiilENT UFFICE.

ERNEST H. PEABODYAND DAVID J. IRISH, OF NEW YORK, N. Y., ASSIGNORS TO THE BABCOCK & WILCOX' COMPANY, OF BAYONNE, NEW JERSEY, A CORPORATION OF NEW JERSEY.

ATOMIZER 0R SPRAYING' DEVICE.

To all whom it may concern Be it known that we, EnNns'r ,l-l. Pnanopv and Dawn) .l'. Inrsn, citizens of the United States, residing. respectively, in New York city, borough of Manhattan. county of New.

words, the present device contains within it-' self. a means for varying the capacity of the atomizer. It. frequently happens that such variation of capacity is desirable in practice, particularly when a small number of burners are in use.

While we refer to the device hereinafter described as an atomizer for liquids, we purpose using it more particularly as an atomizer for liquid fuel, or so-called oil burner.

The invention will be understood by reference to the accompanying drawings in which- Figure 1 is a longitudinal section; certain parts being in elevation. of one form of atomizer embodying our invention. Fig. 2, an end view of the tip. Fig. 3, a longitudi nal section on the plane of the line 3, 3, of Fig. 52. Fig. 4, a transverse section on the plane of the line 4, 4, of Fig. Fig. 5, a

longitudinal section on the plane of the line 5, 5, of Fig. 4. Fig. 6, a side view partly in section of another form of atomizer emb0dying our invention. Fig. 7, an end View of the tip of Fig. 6. Figs. 8, 9, 10, details of part of the atomizer of Fig. 6. Fig. 11, a longitudinal section of another form of atomizer embodying our invention. Fig. 12, an end view of the spindle handle of Fig. 11. Fig. 13 an enlarged detail view of the tip end of Fig. 11, and Fig. 14, a broken section on the plane of the line 14, 14, of Fig. 11.-

Similar reference numerals indicate similar parts in the several views.

In its broadest aspect. our invention consists of a device wherein the oil or other liquid to be atomized is delivered from the Specification of-Lctters Patent.

Application filed September 22, 1911.

Patented July '7, 1911-4.-

Serial No. 650,857.

supply pipe to the tip chamber through one or more holes, and a spindle or plunger mov able in said chamber to control the inlet area to said chamber; that is, to control the area of the single opening thereto or the number of inlets, if there are more than one.

Tn I igs. 1 to 5, we have shown one form of the invention in which pipe 1 leads from the source of liouid supply and is provided with a valve 2. lly means of a suitable coupling 3, we cmmect a pipe 4 to the supply pipe 1 and in the Forward end of pipe 4 locate the atomizing tin. '.his tip as shown, coinprises a plug 5 preferably screwed into the end oi pipe -l-. and a cap (5 seated on the end of said plug and havin an outlet orifice T. The plug 5 has a central longitudinal bore. and one or more longitudinal passages 8, two such passages being shown, which are closed at their outer ends by cap (5. In the wall between the passages S and the central bore of the plug 5. ducts 9 are provided tangential to the wall of said bore. said ducts a ll'ording a communication for the flow of liquid "from pipe 4 t0 the tip outlet. To control the working area of said ducts-- that is, to open them more or less or to completely close them. we provide a spindle 10, the Forward end of which is of such diameter as to snuglv lit into the central bore of plug To effect the necessarv' longitndi nal movement of said spindle, it is formed with a screwthread 11', which passes through an interiorly threaded collar or nut 12 closing the end of nipple 3. Tomanipulate the spindle 10,'a suitable hand wheel 13 is provided.

When the atomizer is not in. use, the hand wheel 13 will have been turned to advance spindle 10 within the central bore of plug 5 so as to completely cover the outlets of ducts 9. -If the tangential ducts 9 extend to the end of plug 5. then the spindle will be seated against cap 6., \Vhen the atomizer is to be put in use, the wheel 13 is turned to withdraw the spindle 10 to uncover the outlets of the tangential ducts a distance suiticient to permit the flow ol the desired amount of liquid. When spindle 10 is withdrawnthe desired d stance, a chamber 14 is formed in the central bore of plug 5 between the end of said spindle and cap 6 into which the liquid flows, and by reason of the arrangement of ducts 9, the liquid will be given a rapid whirling motion in said chamber by which it is atomized when it passes the outlet orifice 7.

Should it be desired to vary the amount of liquid sprayed in a given time, it may be done without changing the pressure or the temperature of the liquid by' simply adjusting spindle 10 to vary the area of the opening of the ducts 9. The latter being in the same transverse plane the movement of spindle 10 opens or closes each duct an equal amount. The pitch of screw 11 may be such as to completely or only partially open the ducts 9 for one complete revolution of hand wheel 13. 7

In Figs. 6 to 10, we have shown a form of the invention in which the tip is provided with a series of holes in difierent transverse planes. Tn this form, the supply pipe 1 delivers the liquid through a suitable coupling to a pipe 15. Instead of making the tip in two parts as in Figs. 1 to 5, we make it in a single piece having a flange 16 by which it may be clamped to the end of pipe 15 by a cap 17; the discharge orifice 18 being centrally located in the tip and the outer end. of the tip fitting snugly the wall of a central opening in the cap, as shown in Fig. 6. The inwardly extending neck 19 of the tip is of less diameter than the interior diameter of pipe 15 and is formed with a series of ducts 2O tangential to the central bore 21 thereof. The bore 21 is contracted at the outer end of the tip to form the outlet orifice and thus provide a seat for spindle 22 when it is moved to close all of the ducts 20. .The spindle 22 is threaded similarly to the spindle 10 of Fig. 1 and is advanced or retracted byturning the hand wheel 23. The ducts 20 are arranged in a spiral path around the neck 19 so that they are in difierent transverse planes and the distance longitudinally between them may be such that for a given extent of movement of the hand wheel 23, the spindle 22 will be retracted to start the uncovering of one of the tangential ducts 20 just as the one preceding it has been completely opened. However arranged as to the-longitudinal distance between them, the result is that when the spindle is retracted, a greater amount of liquid will be permitted to enter the chamber 21 through the tangentialducts while maintainin the initial pressure in the pipe 1 substantia 1y constant; and, conversely, the amount of liquid may be reduced by advancing the spindle to close some of the tangential ducts without a de-v crease of the initial pressure in the pipe 1.

In Figs. 11 to 14 inclusive, we have shown still another form of our invention embodying the same princi le of operation and containing some additional features which assist in the manipulation of the device.

In this form, the supply pipe 1 is fitted to an elbow 24: to which the pipe 25 is also connected. Resting on the outer end of pipe 25 and clamped thereto by means of -a cap 26, is a tip 27 of substantially the same form as shown in Fig. 6, except that in the present form the tangential ducts 28 which permit the flow of liquid from pipe 25 to the chamber 29 formed between the end of plunger 30 and the end of the tip, are arranged as shown; that is, two or more ducts are in the same transverse plane but so arranged that a given series of these ducts are on a spiral path-that is, the ducts in this tip combine thearrangement of Figs. 1 and 6. Y The spindle at one end fits into the central bore of the tip-27v and passing through a suitable stufiing box is threaded at its outer end 31. Instead of being advanced or retracted by a rotary movement, we provide in this case for the rectilinear movement only of the plunger. To efi'ect this, the threaded end of the plunger is engaged by a hand wheel 32 splined thereon, said hand wheel having a follower 33 which engages the screw, threads; it being obvious that as the hand wheel is rotated the follower 33 will efiect a rectilinear movement of the spindle without rotating the same.

As shown in the drawings the spindles of the several devices illustrated have an abrupt end and control only the inlet areas of the openings into the oil chamber of the tip-;' that is, the spindle in each construction does not have at its end a needle valve which would enter and control the area of the discharge orifice. I vention the total area of the discharge orifice is available at all'times for the outflow of the oil when the spindle is moved to uncover the openings into the tip chamber.

To indicate to the attendant the extent of movement of spindle 30 or the number of ducts open through tip 27 when the spindle is-retracted we provide a scale on the face of hand wheel 32 the divisions of which correspond to the pitch of screw 31, or a given According to the present inmovement of the spindle which will open a 1 greater or. less number of the ducts in the tip for a partial revolution of the hand wheel. This is a mere matter of convenience and may be arranged as desired. We have shown the hand wheel so divided that. the movement from zero to 1 may completely open the first row of ducts, and the movement from 1 to 2 may open the second row, etc. This, however, may be arranged as desired. The bracket 34: which forms a continuation of the elbow 2 1 may be turned upwardly in front of the hand wheel to form a. pointer 35. To hold the hand wheel to any adjusted position, we provide notches 36 on the rear thereof, which notches are adapted to be engaged by a spring-pressed-finger 37. On the face of hand wheel 36, is a groove 38 into which projects a stud or pin 39 supported on bracket 3 1. The groove 38 is not continuous around the face of the hand wheel, as indicated in Fig. 12, thus providing two shoulders 40 to thereby limit the rotation of the hand wheel when engaged by the stop pin 39. That is, when the hand wheel is turned to zero position, the plunger will be advanced so that its end will rest against the seat formed by the tip so as to close all of the ducts in the tip. The stop pin 39 will then engage one of the shoulders. When the hand wheel is turned to its other extreme position, the spindle 30 will have been moved sufficiently to open all of the ducts 28 and the stoppin 39 will engage the other shoulder. i

What we claim and desire to secure by Letters Patent of the United States is 1. In an atomizer or spraying device, a supply pipe, a tip having a discharge orifice and an oil chamber, the wall of said chamber having lateral or side openings communicating with the supply pipe, and an abrupt ended member movable in said chamber and operable from without the supply pipe to control only the inlet area of said openings and to leave the discharge orifice free for the flow of the oil.

2. In an atomizer or spraying device, a supply pipe, a tip having a discharge orifice and an oil chamber, the wall of said chamber having lateral or side openings communicating with the supply pipe and tangential to said chamber, and an abrupt ended member movable in said chamber and operable from without the supply pipe to control only the inlet area of said openings and to leave the discharge orifice free for the flow of the oil.

3. In an atomizer or spraying device, a supply pipe, a tip having a discharge orifice and an extension with a central chamber, said extension having lateral or side openings therein communicating with the supply pipe and tangential to the saidchalnber, and an abrupt ended member movable in said chamber and operable from without the supply pipe to control only the inlet area of said openings and to leave the discharge orifice free for the flow of the oil.

4. In an atomizer or spraying device, a supply pipe, a tip having a neck with a longitudinal bore, said neck being of less diameter than the internal diameter of the supply pipe and having ducts in the wall thereof to permit the flow of liquid to the bore of the neck, and an abrupt ended member movable in said chamber to control only the inlet area of said ducts and to leave the discharge orifice free for the flow of the oil.

5. In an atomizer or spraying device, a supply pipe, a tip having a neck with a longitudinal bore, said neck being of less diameter than the internal diameter of the supply pipe and having ducts in the wall thereof tangential to said bore, a spindle seated in said bore, said spindle having an abrupt end so as to leave the discharge orifice free for the flow of the oil, and means for moving said spindle to control the inlet area of sa1d ducts.

In testimony whereof we have hereunto signed our names in the presence of two subscribing witnesses.

ERNEST H. PEABODY. DAVID J. IRISH. Witnesses:

M. E. MoNiNon, CHARLES S. Jones. 

